Orange G and Remazol Brilliant Blue R decolorization by white rot fungi Dichomitus squalens, Ischnoderma resinosum and Pleurotus calyptratus

Eichlerová, Ivana; Homolka, Ladislav; Lisá, Ludmila; Nerud, F.

doi:10.1016/j.chemosphere.2004.12.036

Cited by 84 publications

(51 citation statements)

References 37 publications

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“…White-rot fungi have the ability to degrade a wide range of persistent or toxic environmental contaminants, such as PCBs, PAHs, pentachlorophenol, pesticides, dioxins, and synthetic dyes, among others, which makes them good candidates for use in processes of bioremediation (Barr and Aust, 1994;Pointing, 2001;Eichlerová et al, 2005;Tortella et al, 2005;Ru-bilar et al, 2008;Rubilar et al, 2011). The potential of white-rot fungi resides in their enzymatic system, which is nonspecific, and secreted into the extracellular environment (Durán and Esposito, 2000).…”

Section: Effect Of Biosurfactants On the Degradation Of Hydrophobic Omentioning

confidence: 99%

“…The potential of white-rot fungi resides in their enzymatic system, which is nonspecific, and secreted into the extracellular environment (Durán and Esposito, 2000). White-rot fungi secrete one or more of the three enzymes that are essential for the degradation of lignin: laccase (Lac), lignin peroxidase (LiP), and Mn dependant peroxidase (MnP) (Reddy, 1995;Pointing, 2001;Eichlerová et al, 2005). These enzymes are secreted during secondary metabolism, as a result of nutrient depletion of carbon or sulphur, or especially, manganese and nitrogen (Hamman et al, 1997;Leung and Pointing, 2002).…”

Section: Effect Of Biosurfactants On the Degradation Of Hydrophobic Omentioning

confidence: 99%

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Biosurfactants are useful tools for the bioremediation of contaminated soil: a review

Bustamante

Duran

Díez

2012

J. Soil Sci. Plant Nutr.

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Bioremediation processes are negatively affected by the low aqueous solubility of some contaminants; therefore their bioavailability may be enhanced by the addition of surfactants. These compounds are organic molecules that can be chemically and biologically produced. Surfactants contain both hydrophilic and hydrophobic groups, therefore reducing surface and interfacial tensions of immiscible fluids and increasing the solubility and sorption of hydrophobic organic and inorganic compounds. This article provides an overview of characteristics of natural and synthetic surfactants and the effects of biosurfactants on solubility, sorption and biodegradation of hydrophobic organic contaminants; as well as the effects of biosurfactants on degrader microorganisms as white-rot fungi. Finally, some examples of application of natural surfactants for bioremediation of contaminated soils are shown. In general, this overview indicates the great potential of biosurfactants on the remediation of contaminated sites.

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Section: Effect Of Biosurfactants On the Degradation Of Hydrophobic Omentioning

confidence: 99%

Section: Effect Of Biosurfactants On the Degradation Of Hydrophobic Omentioning

confidence: 99%

Biosurfactants are useful tools for the bioremediation of contaminated soil: a review

Bustamante

Duran

Díez

2012

J. Soil Sci. Plant Nutr.

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“…Une étude réalisée par CRIPPS et al (1990) a montré que P. chrysosporium est capable de dégrader les colorants azoïques sulfonés. Les études menées sur ce type de champignons se sont par la suite multipliées (Tableau 5) sur une gamme plus étendue et plus diversifiée de colorants synthétiques, notamment azoïques (BALAN et MoNTEIRo, 2001;BANAT et al, 1996;PASzCzyNSkI et al, 1992 , ce dernier étant responsable de l'oxydation des composés phénoliques uniquement EICHLERoVA et al, 2005;FUJIAN et al, 2001;HARAzoNA et NAkAMURA, 2005).…”

Section: Traitements Biologiques 331 Décoloration Par Les Champignonsunclassified

Les colorants textiles sources de contamination de l’eau : CRIBLAGE de la toxicité et des méthodes de traitement

Mansour¹,

Boughzala

Dridi

et al. 2011

rseau

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Les colorants sont largement utilisés dans les imprimeries, les produits alimentaires, cosmétiques et cliniques, mais en particulier dans les industries textiles pour leur stabilité chimique et la facilité de leur synthèse et leur variété de couleurs. Cependant, ces colorants sont à l’origine de la pollution une fois évacués dans l’environnement. La production mondiale des colorants est estimée à plus de 800 000 t•an-1 et les colorants azoïques sont majoritaires et représentent 60-70 %. Compte tenu de la composition très hétérogène de ces derniers, leur dégradation conduit souvent à la conception d’une chaîne de traitement physique-chimique et biologique assurant l’élimination des différents polluants par étapes successives. Dés études ont montré que plusieurs colorants azoïques sont toxiques et mutagènes et le traitement biologique de ces colorants semble présenter un intérêt scientifique majeur. Les traitements physico-chimiques communs (adsorption, coagulation/floculation, précipitation etc.) sont couramment utilisés pour les effluents industriels. Malgré leur rapidité, ces méthodes se sont avérées peu efficaces compte tenu des normes exigées sur ces rejets. Le traitement biologique constitue une alternative fiable; en effet, plusieurs microorganismes sont capables de transformer les colorants azoïques en sous-produits incolores. Les bactéries dégradent les colorants azoïques en deux étapes : un clivage de liaison azo, par l’intermédiaire de l’azoréductase, suivi d’une oxydation des amines aromatiques formées lors de la première étape. L’azoréduction constitue alors une étape clé du traitement des effluents chargés de ces colorants.Dyes are widely used for industrial, printing, food, cosmetic and clinical purposes as well as textile dyeing because of their chemical stability, ease of synthesis, and versatility. Their stability, however, causes pollution once the dyes are released into the environment in effluents. More than 800,000 tons of dyes are annually produced worldwide, of which 60 to 70% are azo dyes. Considering the heterogeneous composition of these latter dyes, their degradation usually requires a chain of physical, chemical and biological treatments assuring the elimination of different pollutants in successive steps. In addition, some azo dyes are toxic and mutagenic and thus the biological treatment of these dyes is now of major scientific interest. Physical-chemical treatments (adsorption, coagulation/flocculation precipitation, etc.) are usually used for industrial effluents. In spite of their rapidity, these methods have turned out to be ineffective in attaining the standards required for these discharges. As a viable alternative, biological processes are receiving increasing interest owing to their cost effectiveness and their ability to produce less sludge. It has been found that some microorganisms can transform azo dyes into colourless products. Bacterial degradation of azo dyes is often initiated by an enzymatic biotransformation step that involves cleavage of azo linkages with the aid of...

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“…A decrease of the maximum absorbance is observed (478 nm for Orange G) and (594 nm for RB4) during the incubation period, reflecting a very strong capacity of dye degradation by this fungus. Elsewhere, by changing the composition of the medium, Eichlerova et al [28] showed that fungi D. squalens, I. resinosum and P. calyptratus significantly degrade Orange G and Remazol Brilliant Blue in two weeks at the concentration of 500 mg/L. The reduction of absorbance areas of the chromophores translates a decrease in absorbance and therefore in colour.…”

Section: Decolorization and Enzyme Activities On Liquid Mediamentioning

confidence: 99%

Biodegradation of Reactive Blue 4 and Orange G by Pycnoporus sanguineus Strain Isolated in Gabon

Attéké

Mounguengui²,

Jean-Bosco

et al. 2013

J Bioremed Biodeg

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The fungus Pycnoporus sanguineus MUCL 51321 white rot isolated in Gabon showed a high ability to decolorize and degrade two synthetic dyes. On solid and liquid media, the fungus had different enzyme activities (laccase and manganese (Mn) peroxidase) in the presence of different substrates. At concentrations of 0.05 g/L (Orange G) and 0.3 g/L (reactive blue 4), the respective rates of decolorization of 81% and 97% were observed after 15 days of incubation in liquid media. In the same time interval, changes on the spectra (UV-vis and FTIR) and chromatograms (HPLC) showed that these decolorizations were due to the degradation of dyes by fungus with the production of new compounds. The study revealed the possibility of the use of this fungal strain in the microbial degradation process of synthetic dyes. Aldrich (Sigma-Aldrich, St. Louis, MO, USA). All reagents used were of the analytical grade. Journal of Bior emediation & Biodegradation Culture ConditionsThe composition of the solid growth medium used was as follows: 0.2% glucose, 0.2% malt extract, 0.01% MgSO 4 , 0.01% MnCl 2 , 0.03% NH 4 NO 3 , 0.026% KH 2 PO 4 , 0.026% Na 2 HPO 4 , 0.01% CaCl 2 .2H 2 O, 0.0001% FeC1 3 .6H 2 O, 0.0001% ZnCl 2 , 1.6% and 1.6% agar in 1 L of distilled water. The pH was adjusted to 5.5 with hydrochloric acid (0. 5 N) before autoclaving (at 121°C for 15 min). The culture medium was transferred into 4 Erlenmeyer flasks (200 mL each) and each reagent (enzymatic revelation) or dye, depending on its final concentration was added. The mixture was shaken, then about 15 mL were distributed in a Petri dish (diameter 8.5 mm); each test was replicated three times. 50 mL of liquid culture media in flasks of 100 mL were constituted in almost the same way as the solid culture media described above, except for the absence of agar. Each test was conducted three times. Decolorization experimentsDyes decolorization on solid medium: Solid culture media contained different concentrations of each dye (0.05 g/L to 1.5 g/L). Various controls were also prepared: some Petri dishes with fungus alone and others with dye alone to assess possible abiotic decolorization. One square portion of agar (1 cm of diameter) containing the fungus was placed at the centre of each Petri dish. The fungal growth diameters and the halos of decolorization were measured every day during one week at constants temperature (30°C) and humidity (75%). After these measures, different ratios and rates (decolorization or inhibition) were determined as described by . The optimum temperature of decolorization was evaluated using different growth temperatures (15, 22, 30, 35, 40 and 45°C). Moreover, the optimal concentrations for decolorization (0.05 g/L for the Orange G and 0.3 g/L for the RB4) were obtained after one week. All tests were conducted three times (averages are presented with the corresponding standard deviations).Dyes decolorization on liquid culture medium: For each Erlenmeyer flask (100 mL) containing liquid culture medium (50 mL) and dye (0.05 g/L Orange G or 0.3...

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Orange G and Remazol Brilliant Blue R decolorization by white rot fungi Dichomitus squalens, Ischnoderma resinosum and Pleurotus calyptratus

Cited by 84 publications

References 37 publications

Biosurfactants are useful tools for the bioremediation of contaminated soil: a review

Biosurfactants are useful tools for the bioremediation of contaminated soil: a review

Les colorants textiles sources de contamination de l’eau : CRIBLAGE de la toxicité et des méthodes de traitement

Biodegradation of Reactive Blue 4 and Orange G by Pycnoporus sanguineus Strain Isolated in Gabon

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